Home / 816,145.20-1,224,217.80-516,963.60

Finding the Fourth Proportional to 816,145.20, 1,224,217.80 and 516,963.60

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Solution

The fourth proportional to 816,145.20, 1,224,217.80 and 516,963.60 is: 775,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,145.20 : 1,224,217.80 = 516,963.60 : x
  2. Step 2: Convert to fraction form
    816,145.20/1,224,217.80 = 516,963.60/x
  3. Step 3: Cross multiply
    816,145.20x = 1,224,217.80 × 516,963.60
  4. Step 4: Simplify right side
    816,145.20x = 632,876,041,072.08
  5. Step 5: Solve for x
    x = 632,876,041,072.08/816,145.20
  6. Step 6: Final answer
    x = 775,445.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.